Overview:This interactive investigation explains what homologies and analogies are, how to recognize them, and how they evolve.

Author/Source:UC Museum of Paleontology

Grade level:6-8

Time:30 minutes

Teaching tips:This tutorial provides many interactive features and does an excellent job of explaining homologies and analogies. You may want to have your class explore the resources Examples of Analogy and Examples of Homology available in the resource database at the main Understanding Evolution Website, evolution.berkeley.edu. There is also a version of this tutorial that is appropriate for grades 9-12.